It's called electroreceptive and some sharks like the great white are so adept at it, they can perceive as little as one-millionth of a volt in the water.
这被称为电感受，一些鲨鱼，比如大白鲨，非常擅长电感受，它们可以感知水中百万分之一伏特的电流。
Electroreceptive
原声例句
国家地理科普（视频版）
英语百科
Electroreception
（重定向自Electroreceptive）
![For the elephantfish (here Gnathonemus) the electric field emanates from an electric organ in the tail region (gray rectangle). It is sensed by the electroreceptive skin areas, using two electric pits (foveas) to actively search and inspect objects. Shown are the field distortions created by two different types of objects: a plant that conducts better than water, above (green) and a non-conducting stone, below (gray).[1][2]](/uploads/202501/11/Scene_analysis_in_electroreception0142.jpg)
Electroreception is the biological ability to perceive natural electrical stimuli. It has been observed almost exclusively in aquatic or amphibious animals, since salt-water is a much better conductor than air, the currently known exceptions being echidnas, cockroaches and bees. Electroreception is used in electrolocation (detecting objects) and for electrocommunication.
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